GENERATE ARCS

 

Description: This function allows the user to generate arcs and circles either globally, locally, or about a selected node or point.  The created arc will be included in the CURRENT PART (see PART CONTROL MENU).

 

Usage:

 

1.      DSI prompts:

 >      CREATE LOCAL COORDINATES

 >      PICK NODE/PT FOR ORIGIN

 •   DSI is asking for a desired coordinate system (local or global) about which to create the arc.  DSI prompts the user to create a local system.  A thorough explanation of how to create a local coordinate system is covered in the Local Coordinate System, Section 2.16.

 

 Note:  Arcs and circles are generated about the local W-axis or global Z-axis.

 

2.      Once the desired coordinate system is acquired, it will be displayed on the screen and the prompt will read:

 >      ACCEPT? (Y/N/A)

 

3.      If accepted, DSI prompts:

 >      ENTER RAD, TH1, TH2, INC

 •      RAD = radius of arc.

 •      TH1 = beginning point of arc or circle.

 •      TH2 = ending point of arc or circle.

 •      INC = angle increment between points (default is 5 degrees).

•     Any real value greater than zero is valid. i.e., 100,0,360,10 is a circle with a radius of 100 units with an increment of 10 degrees between points.

 

 

              

 

 An arc and a circle have been generated with the same center.

 

4.   DSI prompts:

 >       SAME CENTER AND PLANE? (YES/NO/EXIT)

  •      Do you want to create another circle/arc using the same center and plane.

  •      YES returns the user to step 3.

                    NO returns the user to step 1.

EXIT exits the function.